Air controlling and regulating device



March 18, 1941. J NU v 2,235,706

AIR CONTRCLLING AND REGULATING DEVICE Filed March 14, 1940 Patented Mar. 18, 1941 UNITED STATES PATENT OFFICE AIR CONTROLLING AND REGULATIN G 'DEVICE John Harms, Appleton, Wis.

Application March 14., 19%0, Serial No. 324,004

Claims. (Cl. ZElT-ll l) This invention relates to air controlling or reg- Ill comprises a housing H provided with a fan ulating device and is an improvement over the structure [2 which is mounted on a drive shaft structure embodied in my Patent No. 2,098,144 l3 journalled in one wall it of the blower. The which issued November 2, 1937, for Air controlhousing ll includes an air discharge duct l5 5 ling devices for blowers. which is adapted to be connected to the combus- 5 An object of this invention is to provide an air tion means for mixing the air with the vaporcontrolling or regulating device for an air intake ized fuel. port which communicates with a combustion The housing H includes a side wall It oppomeans and which is so constructed as to provide site from the wall it which is provided with an cyclonic movement to the incoming air so as intake port ll discharging into the center of the 10 to thereby materially assist in the mixture of fan structure I2. air with the fuel in the combustion device. In order to p d e s w eby the qua Another object of this invention isto provide tity of air entering the intake port ll may be a structure of this kind which includes a filterfinely regulated, and in order to provide a means ing means for removing dirt or other foreign whereby the air entering the intake port It is 15 material from the air before the air enters the given a cyclonic movement, I have provided an combustion devi e, air controlling and regulating means including A further object of this invention is to provide a base plate it which is adapted to be fixed as an adjustable air valve or controlling member by fastening devices Ill to the side wall It of the with an improved supporting means therefor and blower structure ill. The base plate It is pro- 20 means for locking the air valve in adjusted vided with an opening or port 20 which is co position, axial with the intake port ll. The base plate A still further object of this invention is to It on the inner side thereof is provided with a provide an improved air nozzle of substantially frusto-conical nozzle or air guiding member 21 frusto-conical configuration which materially aswhich has the apex thereof disposed in a posi- 5 sists in effecting a cyclonic movement to the air tion for discharge Within the blade structure passing therethrough. It. The air nozzle or guiding member 2! is pro To the foregoing objects and to others which vided at the base thereof with an annular flange may hereinafter appear, the invention consists of 22 which is adapted to be fixed as by soldering 00 the novel construction, combination and arrangeor welding 23 to the inner face of the plate I 8. 3O ment of parts as will be more specifically re- An air filtering member 2% in the form of a ferred to and illustrated in the accompanying screen which is of substantially disc-shape is drawing wherein are shown embodiments of the interposed between the flange 22 and the inner invention, but it is to be understood that changes, face of the base plate It and is clamped between variations and modifications may be resorted to the flange 22 and the plate It so as to firmly 35 which fall within th scope of the invention as hold the filtering member it across the opening claimed. 213. A pair of combined valve supporting and In the drawing: guiding posts 25 are fixedly secured to the base Figure l is a detail side elevation of an air plate I8, being provided at their inner ends with 40 controlling or regulating device constructed acreduced portions 26 which are fixed to the plate 40 cording toan embodiment of this invention which it. These posts or combined guiding and supis mounted ona blower. porting members 25 are diametrically disposed F ure 2 is a sec al v en on t e line with respect to the plate It and a connecting bar 2--2 of Figure l. 26 engages the outer ends of the posts 25. The 5 Fi 3 s an enlarged fragmentary Sectional connecting bar 26 is secured as by fastening deview taken on the line t3 of Figure l. vices 21 to the supporting posts 25.

Figure l is an enlarged fr gme ta y Sec o a A valve or air regulating plate 2% of substanview taken on the line l l of Figure 2. tially disc-shape is disposed in confronting rela- Beferring to the drawing, the numeral Ill destion to the base plate 18 and is substantially ignates generally a blower structure which is larger in diameter than the diameter of the in- 50 adapted to be connected to a stoker, an oil burner take opening or port 20 of the plate ill. The or other combustion device which i provided valve member 28 is provided with a pair of diwith an air intake passage or duct for mixing ametrically opposed sleeves 29 which are conair with the fuel in order to provide the desired nected to the valve member 28 by ears or extenmixture for combustion purposes. The blower sions 30. The sleeves 29 slidably engage the sup- 55 porting and guiding posts 25 and in order to provide a means whereby the sleeves 29 may be locked in adjusted position on the posts 25, I have provided set screws 3| which are threaded through the sleeves 29 and engage the posts 25.

The set screws 3| at their outer ends are provided with a head 32 so that these set screws may be loosened or tightened without use of a tool. The connecting bar 26 at the center thereof is provided with a threaded opening 33, and a threaded valve adjusting shaft 34 engages through the opening '33. The shaft 34 at its inner end is swivelly connected to the center of the valve member 28 and in the present instance, the shaft 34 is provided with a reduced upset portion 35 which engages through an opening 36 formed in a plate 39 fixed to the valve member 28.

The outer end of the shaft 34, is provided with a right angularly disposed head 3'! through which a handle bar 38 engages. The shaft 34' is adapted to be rotated by means of the handle structure 38 so as to thereby move the valve member 28 toward or away from the base plate I8.

In the use and operation of this air controlling means, the base plate i8 is adapted to be fixed to the air intake side .of the blower structure in with the nozzle or guiding means it projecting inwardly of the intake port IT. The locking members 3i are initially loosened so that the valve member 28 may be adjusted relative to the intake port 28 in the base plate [8. The valve member 28 is adjusted by rotating the shaft 34 in the desired direction and when the valve member 28 has been properly adjusted it may be locked in its adjusted position by turning the set screws 3| so that these set screws will tightly engage the supporting and guiding post 25. The air entering the intake port 20 and passing through the filter member 24 must first pass about the periphery or marginal edges of the valve member 28 and in passing about the marginal edges of the valve member 28, the air is given a cyclonic movement which movement will continue as the air passes through the filter member 2i and enters the blower housing H.

With an air controlling or regulating device of this kind which is constructed in the form of an attachment for an air intake, duct or port, the quantity of air may be very finely regulated and in addition thereto, the velocity of the incoming air may also be controlled through the adjustment of the valve member 28. When the valve member 28 has been adjusted to the desired degree, it may be set or locked in its properly adjusted position by the set screws 3i.

It will, of course, be understood that the air regulating means hereinbefore described may be connected to any desired point in an air suction duct, the mounting of the air controlling device on the blower structure being only one example of the mounting of this device. Through the provision of the disc-shaped valve member, the air entering the intake port 20 of the base plate IE will enter in the form of a cone, the center of which will have a partial vacuum due to the fact that the valve member 28 is in the center of the cone-shaped column of air.

The formation of this partial vacuum in the column of air will materially assist in the mixing of the air with the vaporized fuel or gases and will thus materially assist in the complete combustion of the fuel.

While I have shown two guide posts 25 for the valve member 28, it will be understood that the number of these combined guide and supporting posts 25 may be increased for large units so as to properly support and guide the plate 28.

What I claim is:

1. An air controlling device comprising a base plate provided with an axial opening, a frustoconical nozzle disposed on one side of said plate, a flange carried by the base of said nozzle, means securing said flange to said plate, a perforate filter element interposed between said flange and said plate, a disc-shaped valve member, guide members fixed to said plate and extending from the opposite side thereof, a supporting bar fixed to the outer ends of said guide members and provided with a threaded opening coaxial with the axis of said plate opening, sleeves carried by said valve member slidably engaging said guide members, a threaded valve member adjusting shaft engaging through said threaded opening, and means swivelly securing said shaft to said valve member.

2. An air controlling device comprising a base plate provided with an axial opening, a frustoconical nozzle disposed on one side of said plate, aflange carried by the base of said nozzle, means securing said base flange to said plate, a fiat perforate filter element interposed between said flange and said plate and extending across said opening, an adjustable disc-shaped valve member disposed on the opposite side of said plate, means for adjusting said valve member relative to the said opposite side of said plate and means securing said valve member in adjusted position relative to said plate with the inner face of said valve member parallel with the said opposite side of said plate, said valve member having a diameter substantially greater than the diameter of said opening.

3. An air controlling device comprising a base plate provided with an axial opening, a frustoconical nozzle disposed on one side of said plate, a flange carried by the base of said nozzle, means securing said flange to said plate, a perforate filter element interposed between said flange and said plate, a disc-shaped valve member, guide members fixed to said plate and extending from the opposite side thereof, a supporting bar fixed to the outer ends of said guide members and provided with a threaded opening coaxial with the axis of said plate opening, sleeves carried by said valve member slidably engaging said guide members, a threaded valve member adjusting shaft engaging through said threaded opening, means swivelly securing said shaft to said valve members and threaded locking members carried by said sleeves and engageable with said guide members for locking said valve member in adjusted position relative to said plate.

4. An attachment for a fluid suction means for effecting cyclonic movement to the fluid, comprising a base plate, a tapered nozzle at one side of said plate, means securing the base of said nozzle to one side of said plate, said plate having an opening coaxial with said nozzle, a

fiat screen disposed across said opening and interposed between said base and plate, a disc shaped valve member having a diameter substantially greater than the diameter of said opening and opposing the other side of said plate, means supporting said valve member for movement relative to the said other side of said plate, means for adjusting said valve member relative to the said other side of said plate, and means for locking said valve member in adjusted position.

5. An attachment for an air intake port for effecting cyclonic movement, to the air comprising a base plate provided with an axial opening, a frusto-conical member at one side of said plate about said opening, a flange carried by the base of said frusto-conical member, means securing said flange to said plate, a disc-shaped screen across said opening and having the marginal portions thereof interposed between said flange and said plate, a pair of guide posts fixed to said plate and extending from the opposite side thereof, a disc-shaped valve member, a pair of diametrically disposed sleeves fixed to said valve member and slidable on said guide posts, a connecting bar, means securing said bar to the outer ends of said posts, a threaded shaft engaging through said bar, means swivelly securing one end of said bar to the center of said valve member, a handle fixed to the other end of said shaft, and threaded locking means carried by said sleeves engageable with said posts to lock said valve member in adjusted position.

JOHN HANUS. 

